Spectrophotometric determination of hexafluoroarsenate with ferroin

Archer, Vernon S.; Doolittle, Franklin G.

doi:10.1016/0039-9140(67)80123-1

Cited by 9 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The filter disks were combined, and placed in a flask with 10 ml of distilled water. The filtered aqueous solution was analyzed for AsFj by the procedure of Archer and Doolittle (1). The filter disks were dissolved in HC1 and analyzed for AsH 3 by Morri son's (3) procedure.…”

Section: Studies Of Tri-and Pent-oxides or Arsenic Standard Aqueous mentioning

confidence: 99%

“…Hexafluoroarsenate (AsF^) is an anion for which few ana lytical procedures for detection have been developed (2). The spectrophotometric procedure of Archer and Doolittle (1) using ferroin was found reliable and fast for samples of pre pared hexaflurate. They found little or no interferance from 15 different anions.…”

Section: Introductionmentioning

confidence: 99%

“…The organic layer was evaporated to dryness and the residue dissolved in 10 ml of water. Each layer was analyzed for hexa flurate concentration utilizing the ferroin procedure of Archer and Doolittle (1).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hexaflurate in Soils and Plants

1976

View full text Add to dashboard Cite

A clean-up procedure for soil and plant samples utilizing a non-ionic exchange resin column followed by treatment with lead acetate was developed for determining microgram quantities of hexaflurate (potassium hexafluoroarsenate) spectrophotometrically. The method is sensitive to 0.45 ppm with a standard deviation of 0.09 ppm with a recovery of better than 85%. Samples high in organic matter require this treatment to remove interfering substances. Soil samples containing little or no organic matter could be analyzed by using either the lead acetate treatment or the non-ionic exchange resin column. Soil and plant samples analyzed 5 to 7 yr following treatment of south Texas soils for pricklypear (Opuntia spp.) control were found to contain trace quantities of hexaflurate. Downward movement of hexaflurate is either very slow or plants continually assimilate the ion and redeposit it on the soil surface through decomposition of plant parts. The tri- and pent-oxide forms of arsenic did not interfere with analysis of the hexaflurate ion using the clean-up procedure.

show abstract

Section: Studies Of Tri-and Pent-oxides or Arsenic Standard Aqueous mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%